John a



@uitrit jsirn't n@ffice 'JOHN A. weon, or HAGERSTOWN, MARXLAND.

Lette/ra Patent'Na. 82,056, dated September 8, 1858.

. v -HV- IMPROVED BXERGISING-GHAIR.

TO ALLWHOM IT MAY CONCERN:

Bc it known that I, JOHN A. WRoE, of Hagerstown, county of Washington,and State of ll/Iaryland, have invented `certain new and usefulImprovements in Yibratory and Exercising-Chairs for persons-leadingsedentary lives, invalida, ttc.; and Ido hereby declare that thefollowing is a full, clear, and exactdescription of .the same, referencebeing had to thev accompanying drawings, endl-the letters of referencemarkedV thereon,makin part vof this specification, in which- Figure 1 isa'side elevation. Figure 2 isa. front eleva-tion. 1 Figure 8 is aVertical section.' Figure 4 is a rear-view of the back. The nature ofmy'hinvention consists in the construction of chairs for invalids, sothat the baok,seat, arms, and foot-board shall be hollow, vibratory inprinciple, and made of any suitable material, or in any convenient form,the chair proper to rest upon pivots or rockers, so as to move to andfro, and made to vibrate by means of spiral springs, disks, or theirequivalents, and so arranged in the chair that when aetedon byspringlever,.

pendulum, or battery, the chair is made t'o vibrate. To the arms andfoot-board are fixed helices, dependent upon or independent'oi'eaclziother.l Into the helices the arms and legs are to be inserted. The-helices are to be connected with a galvanic battery, and operated onall together or separately, as the case may require.

` When the chair is vibratedby the jar of spiral springs, disks, Sncf,the galvanic battery being in connection Y.

with one or more of the helices, the magnetic current is communicated tothe-part or several parteci' theplticnt in a state of vibration, who mayoccupy the chair-,in a sitting'posture, the arms ahdlegsbeing-inscrtedin the helices andthe back resting against thevibratoryboard. A patient seated on this chair in a state of vibration,

and underthe infinence of any remedial agent, will find that it willgreatly facilitate the,aotion of such agent iu the removal of disease.The patient will also receive the greatest amount of benefit from themagnetic current assisted by the vibrstory motion. y y

To enable others skilled in the art to make and use my invention, Iwillnow proceed to describe its construction and operation. V l

In the drawings,`A is the `arm-chn.iroi` usual form; B, the' pivot, onwhich theupper moves up'cn thebottom part C D D, the helicesfor thearms; E E, the helicesfor the legs. .'F is a disk, )havingconnectedJvith it a main-spring, f, with a hammer, fl, which strikesagainst it. is a rod, having its upper end looped, which'loop slidesupon a screw in the centre of the disk. The lower end of the rod Grresta on a ledge, g, iu the lower part of' the chai-r. H is aspx-ing,which rests upon the rod G and keeps it down. h is a Spring-pawl, whichw rks into s. single ratchet, kl, which is under the spring f2, whichoperates upon the hammer f1.

When-the upper chair is moved backward, it is supported by smallsprings, K, at the corners, and when the j chair is down a suiiicientdistance, the rod G has been forced upward, so that the pawl la c arriesup the ratchet tuntil it passes the point of thefpawl, and by the springh2 is made to recoil, and the hammerf strikes the main-spring and thuscauses a suddenjar, which affects the back-board, against which the headof the patient is reclining, and this takes place as often as the chairis rockedbackward, and asiscon 'as the chair goes forward the spring Hforces the rod down to its place on the ledge g.- A l Thesespring-striking clocks can be put in the sides, i'oot-boards, andbottom, and operated upon in a similar manner; ,and I do not confinemyself to the back of a chair in this invention.

Having thus described my invention, what I claim therein as new, anddesire to secure by Letters Patent, is-

A vibratory and exercising-chair, when the same isA constructedwit'hfhollow back, seat, arms, and foot board, and is so supported uponpivpts or rocker'sthat the chair'can be readily operated by means ofsprings,

or their equivalents, substantially as described, as and for.the'purpose specified.

'In testimony whereof, I havesigned my name to this specication in thepresence oi'gtwo subscribing witnesses.

l' i v 4 JOHN A. W'ROE. Witnesses EDWIN JAMES,-l Joniv D. Bnoon.

